Mechanisms for Stable Solid Electrolyte Interphase Formation and Improved Cycling Stability of Tin-Based Battery Anode in Fluoroethylene Carbonate-Containing Electrolyte

2016 ◽  
Vol 3 (22) ◽  
pp. 1600172 ◽  
Author(s):  
Sukhyun Hong ◽  
Myeong-Ho Choo ◽  
Yo Han Kwon ◽  
Je Young Kim ◽  
Seung-Wan Song
2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Bing Han ◽  
Yucheng Zou ◽  
Zhen Zhang ◽  
Xuming Yang ◽  
Xiaobo Shi ◽  
...  

AbstractCryogenic transmission electron microscopy (cryo-TEM) is a valuable tool recently proposed to investigate battery electrodes. Despite being employed for Li-based battery materials, cryo-TEM measurements for Na-based electrochemical energy storage systems are not commonly reported. In particular, elucidating the chemical and morphological behavior of the Na-metal electrode in contact with a non-aqueous liquid electrolyte solution could provide useful insights that may lead to a better understanding of metal cells during operation. Here, using cryo-TEM, we investigate the effect of fluoroethylene carbonate (FEC) additive on the solid electrolyte interphase (SEI) structure of a Na-metal electrode. Without FEC, the NaPF6-containing carbonate-based electrolyte reacts with the metal electrode to produce an unstable SEI, rich in Na2CO3 and Na3PO4, which constantly consumes the sodium reservoir of the cell during cycling. When FEC is used, the Na-metal electrode forms a multilayer SEI structure comprising an outer NaF-rich amorphous phase and an inner Na3PO4 phase. This layered structure stabilizes the SEI and prevents further reactions between the electrolyte and the Na metal.


2016 ◽  
Vol 18 (12) ◽  
pp. 8643-8653 ◽  
Author(s):  
Yukihiro Okuno ◽  
Keisuke Ushirogata ◽  
Keitaro Sodeyama ◽  
Yoshitaka Tateyama

Additives in the electrolyte solution of lithium-ion batteries (LIBs) have a large impact on the performance of the solid electrolyte interphase (SEI) that forms on the anode and is a key to the stability and durability of LIBs.


2020 ◽  
Vol 167 (6) ◽  
pp. 060533 ◽  
Author(s):  
Lénaïc Madec ◽  
Gaël Coquil ◽  
Jean-Bernard Ledeuil ◽  
Grégory Gachot ◽  
Laure Monconduit ◽  
...  

2011 ◽  
Vol 158 (7) ◽  
pp. A798 ◽  
Author(s):  
Hideki Nakai ◽  
Tadahiko Kubota ◽  
Akinori Kita ◽  
Atsumichi Kawashima

2018 ◽  
Vol 130 (14) ◽  
pp. 3718-3722 ◽  
Author(s):  
Zhiqiang Zhu ◽  
Yuxin Tang ◽  
Zhisheng Lv ◽  
Jiaqi Wei ◽  
Yanyan Zhang ◽  
...  

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